/*************************************************************************
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 *  Sun Industry Standards Source License Version 1.1
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 ************************************************************************/
/*************************************************************************
 * @file 
 *  to provide basic utilities for word pro filter
 ************************************************************************/
/*************************************************************************
 * Change History
 Jan 2005			Created
 ************************************************************************/

#ifndef _LWPTOOLS_HXX
#define _LWPTOOLS_HXX

#include "lwpheader.hxx"
#include "lwpobjstrm.hxx"
#include "localtime.hxx"
#include "xfilter/xfdatestyle.hxx"
#include "xfilter/xftimestyle.hxx"
#include <rtl/textenc.h>

// 01/19/2005
const sal_uInt32 UNITS_PER_INCH = 65536L * 72L;
const double CM_PER_INCH = 2.54;
const double INCHT_PER_CM = (1.0 / CM_PER_INCH);
//end

const double POINTS_PER_INCH = 72.27;
const double TWIPS_PER_POINT = 20.0;
const double TWIPS_PER_INCH = (TWIPS_PER_POINT * POINTS_PER_INCH);
const double TWIPS_PER_CM = (TWIPS_PER_INCH/CM_PER_INCH);
/**
 * @brief	tool class (unicode, conversion) for lwp filter.
*/
class LwpTools
{

public:
	static sal_uInt16 QuickReadUnicode( LwpObjectStream* pObjStrm, 
		OUString& str, sal_uInt16 strlen,  rtl_TextEncoding aEncoding );
	static BOOL IsUnicodePacked(LwpObjectStream* pObjStrm, sal_uInt16 len);

	// 01/19/2005
	inline static double ConvertFromUnits(const sal_Int32& nUnits);
	inline static double ConvertToMetric(const double& fInch);
	inline static double ConvertFromMetric(const double& fCM);
	inline static double ConvertFromUnitsToMetric(const sal_Int32& nUnits);
	//end
	
	//add by , 03/11/2005
	inline static sal_Int32 ConvertToUnits(const double& fInch);
	//add end

	//, 02/23/2005
	inline static sal_Bool IsOddNumber(sal_uInt16& nNumber);
	inline static sal_Bool IsEvenNumber(sal_uInt16& nNumber);

	static sal_Bool isFileUrl(const OString& fileName);
	static OUString convertToFileUrl(const OString& fileName);
	static rtl::OUString	DateTimeToOUString(LtTm& dt);
	
	//add by ,2005/6/1
	static XFDateStyle* GetSystemDateStyle(sal_Bool bLongFormat);
	static XFTimeStyle* GetSystemTimeStyle();	
};

inline double LwpTools::ConvertFromUnits(const sal_Int32& nUnits)
{
	return (double)nUnits/UNITS_PER_INCH;
}
inline double LwpTools::ConvertToMetric(const double& fInch)
{
	return fInch*CM_PER_INCH; 
}
inline double LwpTools::ConvertFromMetric(const double& fCM)
{
	return fCM/CM_PER_INCH;
}
inline double LwpTools::ConvertFromUnitsToMetric(const sal_Int32& nUnits)
{
	double fInch = ConvertFromUnits(nUnits);
	return ConvertToMetric(fInch);
}
inline sal_Int32 LwpTools::ConvertToUnits(const double& fInch)
{
	return (sal_Int32)fInch*UNITS_PER_INCH;
}
inline sal_Bool LwpTools::IsOddNumber(sal_uInt16& nNumber)
{
	return nNumber%2? sal_True : sal_False;
}
inline sal_Bool LwpTools::IsEvenNumber(sal_uInt16& nNumber)
{
	return nNumber%2? sal_False : sal_True;
}

#endif
